MathematicsMedium64×since 2002Q2920The positive value of λ\lambdaλ for which the co-efficient of x² in the expression x² (x+λx2)10{\left( {\sqrt x + {\lambda \over {{x^2}}}} \right)^{10}}(x+x2λ)10 is 720, is -A4B222\sqrt 222C3D5\sqrt 55Check answerSkip